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Finding the Fourth Proportional to 396,876.54, 595,396.80 and 130,653.06

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Solution

The fourth proportional to 396,876.54, 595,396.80 and 130,653.06 is: 196,006.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,876.54 : 595,396.80 = 130,653.06 : x
  2. Step 2: Convert to fraction form
    396,876.54/595,396.80 = 130,653.06/x
  3. Step 3: Cross multiply
    396,876.54x = 595,396.80 × 130,653.06
  4. Step 4: Simplify right side
    396,876.54x = 77,790,413,834.21
  5. Step 5: Solve for x
    x = 77,790,413,834.21/396,876.54
  6. Step 6: Final answer
    x = 196,006.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.